net/http: TestResponseControllerSetFutureWriteDeadline/h2 failures

[gopherbot]

#!watchflakes
default <- pkg == "net/http" && test == "TestResponseControllerSetFutureWriteDeadline/h2"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestResponseControllerSetFutureWriteDeadline/h2
=== PAUSE TestResponseControllerSetFutureWriteDeadline/h2
=== CONT  TestResponseControllerSetFutureWriteDeadline/h2
==================
WARNING: DATA RACE
Read at 0x00c0004c5be3 by goroutine 6168:
  testing.(*common).logDepth()
      /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1025 +0x504
  testing.(*common).log()
      /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1012 +0xa4
...
      /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:2204 +0x8be
  testing.(*M).Run()
      /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:2072 +0xf17
  net/http_test.TestMain()
      /home/swarming/.swarming/w/ir/x/w/goroot/src/net/http/main_test.go:24 +0x64
  main.main()
      _testmain.go:1225 +0x2d4
==================
    testing.go:1413: race detected during execution of test
--- FAIL: TestResponseControllerSetFutureWriteDeadline/h2 (0.11s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "net/http" && test == "TestResponseControllerSetFutureWriteDeadline/h2"

2024-03-21 21:01 gotip-linux-amd64-race go@b4f37e18 net/http.TestResponseControllerSetFutureWriteDeadline/h2 (log)

=== RUN   TestResponseControllerSetFutureWriteDeadline/h2
=== PAUSE TestResponseControllerSetFutureWriteDeadline/h2
=== CONT  TestResponseControllerSetFutureWriteDeadline/h2
==================
WARNING: DATA RACE
Read at 0x00c0004c5be3 by goroutine 6168:
  testing.(*common).logDepth()
      /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1025 +0x504
  testing.(*common).log()
      /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1012 +0xa4
...
      /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:2204 +0x8be
  testing.(*M).Run()
      /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:2072 +0xf17
  net/http_test.TestMain()
      /home/swarming/.swarming/w/ir/x/w/goroot/src/net/http/main_test.go:24 +0x64
  main.main()
      _testmain.go:1225 +0x2d4
==================
    testing.go:1413: race detected during execution of test
--- FAIL: TestResponseControllerSetFutureWriteDeadline/h2 (0.11s)

— watchflakes

[cherrymui]

Dup of #66519.